土地利用总体规划局部修改数字化问题及对策

简述了土地总体规划局部修改技术路线，指出技术路线中的面积量算存在的问题主要源于规划图件的数字化过程中。探讨了土地利用总体规划局部修改数字化问题：数字化前图件未进行校正；未经过坐标匹配和投影变换；数字化前后信息不一致；定住缺乏精度；成果图不规范。分析了产生问题的原因：缺乏统一的管理办法；编制单位工作人员水平参差不齐；对图件数字化基础工作的重要性认识不足;原规划图基础条件太差。提出了出台全国统一的管理办法和技术规程、建立行业准入制和编制单位资质体系、建立数字化成果的监督和质量控制机制、进行成果图坐标匹配和投影变换、成果图件格式板式统一的对策建议，以期为科学修改土地利用总体规划提供技术保障，更好地发挥土地利用总体规划的宏观调控作用。

Digital Problems and Strategies of Partial Revision in Overall Plan of Land Utilization

The technical route of partial revision in overall plan of land use is briefly described. It is pointed out that the problem of area measuring in the technical route is mainly due to the digital process. The digital problems of partial revision in overall plan of land use are presented as follows： the maps are not proofread before digitalization; the coordinate matching and projection transformation are not conducted on the maps ; the information is asymmetrical pre and post the digitalization ; the location lacks precision ; the result maps are substandard. The causes of these problems are analyzed, which cover the following aspects. The lack of united management regulations; the working ability of the staff in the compilation units is uneven ; some staff can not aware the importance of the digitalization of maps ; the basic condition of the original plan maps is poor. At last, the relevant suggestions are put forward, for instance, releasing the national united management methods and technical criteria, establishing industry admission system and qualification system of complication units, setting up the mechanism of su- pervising digitalized results and controlling the quality, conducting coordinate matching and projection transformation and unifying the specification and mode of the results of maps so as to provide technical support for the overall plan of land play the micro-regulating role of land use.